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All Journal Alpha Epsilon Journal of Mathematics
Fiqih Rahman Hartiansyah
Universitas Annuqayah
Mathematics

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Penerapan Algoritma Welch Powell Untuk Menyusun Jadwal Mata Kuliah Di IST Annuqayah Inda Arundani; Luluk Sarifah; Fiqih Rahman Hartiansyah
Alpha-Epsilon: Journal of Mathematics Vol 1 No 1 (2025): January
Publisher : Department of Mathematics, Faculty of Mathematics and Scince, Universitas Annuqayah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59005/aejm.v1i1.518

Abstract

Graph coloring is the giving of color to certain objects in the graph. These objects can be nodes, edges, and regions. This study aims to look at the process and results of graph coloring using the Welch Powell Algorithm in the preparation of class schedules for the Mathematics and Biology Study Program, Faculty of Mathematics and Natural Sciences, Annuqayah Institute of Science and Technology. The type of research used is descriptive qualitative research. The object of research in this study is the list of lecturers, list of courses, lecture active hours, and the number of rooms used. Data analysis was carried out by modeling a list of lecturers with a list of courses into a graph and determining the minimum color in the coloring process using Welch Powell's algorithm. In this research, we know the performance of the Welch Powell algorithm in compiling schedules for each study program and combined scheduling. Based on the scheduling results, it can be concluded that the application of Welch Powell's algorithm for combined scheduling is more effective and more efficient to use than scheduling for each study program. In addition to not overlapping between courses, it can also save space.
Optimalisasi Profit Penjualan Dengan Linear Programming Melalui Metode Simpleks Menggunakan Qm For Windows (Studi Kasus UD. Hasil Laut Prima Desa Prenduan) Alifatul Fuaddiyah; Fiqih Rahman Hartiansyah; Moh. Wasil
Alpha-Epsilon: Journal of Mathematics Vol 1 No 2 (2025): July
Publisher : Department of Mathematics, Faculty of Mathematics and Scince, Universitas Annuqayah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59005/aejm.v1i2.1084

Abstract

This study aims to determine the right combination of resources in order to obtain the maximum amount of production to obtain optimal profits in the UD industry. Prima Sea Results Prenduan village. The analysis used is Linear programming through simplex method using Qm for Windows application. In this study there are 3 decision variables and 8 constraint functions. The decision variables used are jumbo, medium and stick rengginang. The constraints in this study are the raw materials used in the processing of rengginang. The results of this study indicate that the production and profits obtained are still not optimal, to achieve optimal profits, it must produce 12 pcs of rengginang stick with optimal profits reaching Rp. 2,435,616.00.
Co-Authors Alifatul Fuaddiyah Inda Arundani Luluk Sarifah Moh. Wasil